I've been looking to upgrade the back protection on several of my riding jackets, and this looked to be a reasonably-priced insert. Got the medium size about a month ago and have tried it in my Sliders Carmel and Icon Hooligan jersey. The Bionic Air fits the Icon jacket perfectly, but just barely squeezes into the Carmel jacket -- a large size would not fit. Due to the heavier construction compared to the stock foam pads, the Bionic Air doesn't bend much, so it's harder to fit into tight compartments like in the Carmel. Once it's in, this is a fantastic back protector -- much more protection from pointy objects, and a LOT more padding in the case of a down. I highly recommend the Bionic Air back protector.

I bought these shorts to wear under my sliders jeans to add impact protection and they served the purpose well. Be careful when putting them on so you don't tear the fabric by pulling too hard. The leg bands are too tight for my legs and it could tear the fabric. I pushed them up by holding onto the bottom of the thigh pads and that helped me to get them up without fear of damaging them.Riding with them was great. They were comfortable and I forgot they were there for most of the ride. The only time I noticed them was when stopped and I felt the slight warmth under the thigh pads.I'm very pleased with them.

Cons: 'Armor' or padding is probably not going to absorb a huge amount of impact without some damage to your body. A lack of front 'personal equipment' access means pulling both pants and shorts down to pee - a little awkward in some circumstances.

Well made and good fit for my 5' 912, 150 lb., slenderwiry frame. Bought size M for my 31 -32 waist and are pretty comfortable. I feel that they would probably mitigate and soften a moderately serious spill, absorbing some, but not a huge amount, of impact and protect to some degree against abrasion. This is basically what I figured I was looking for, and getting.They don't show at all when worn under my Carrhart logger jeans and are definitely not hot and clingy like I imagined they might be riding here in central coastal CA. in both warmer and cooler weather.I think they represent an excellent value for most general, mildly aggressive riding. However, I also think that if you're looking for a lot of protection for really serious sport riding there are many other more expensive, far more effective options available.

The Alpinestars Tech Chest Guard simply slips into your leathers, simple to use.Once in place, it stays put and almost disappears. IMO, it's much easier to use compared to the ones that require belts, straps, etc.My critisisms are very minor - I'm a 42 chest, it might fit better if this guard were perhaps an inch or so narrower. Maybe.Otherwise, the front coverage is good.If I were to improve this pad, I would consider using more non-slip material on the back side.And lastly, although it does conform to your chest, it wouldn't hurt if it was pre-curved a little bit more. I like it and recommend it.

I went on a little bit of an armor spending-spree on my Alpinestars T-Breeze mesh jacket in XL lately. I replaced the chest foam padding with their upgraded CE-rated chest armor. They look cool and should hopefully keep my chest protected from any unintended collisions with something moving in the opposite direction. They don't seem to want to sit in place very well though and they sag a little low. While that is to be expected with my age, I suspect it is indicative of my jacket being a bit too large. Regardless, the armor is well constructed and a worthwhile upgrade to any Alpinestars jacket with the chest armor pockets.

I am a lean guy who wears a 33 jeans and the Large size of these shorts is way too tight at the waist and thighs. I didn't have the time to return these but suggest ordering the next size up. Aside from the sizing these are great protectors.

PANTS AND JACKETSBust or Chest: measured around the fullest part of the chestWaist: measured at the natural waistHip: measured at the widest part of the hipsInseam: measured from the crotch to the floorHeight: natural height without shoes

WOMENS

Alpinestars Womens Pants Sizes

Size

Waist

Hip

Inseam

Height

XS

23.5" - 26.7"

34.2" - 35.8"

30"

63"

SM

26.7" - 28.7"

36.6" - 38.2"

31"

64"

MD

28.7" - 31.1"

39" - 40.5"

31"

65"

LG

31.1" - 33.5"

41.2" - 43"

32"

66"

XL

33.5" - 35.8"

43.7" - 45.2"

33"

67"

2X

35.8" - 38.2"

46" - 47.7"

33"

68"

Alpinestars Womens Textile Jacket Sizes

Size

Bust

Waist

Hip

Height

XS

32.6" - 34.2"

24.8" - 26.3"

34.2" - 35.8"

64 - 65"

SM

35" - 36.6"

27.1" - 28.7"

36.6" - 38.2"

65 - 67"

MD

37.4" - 38.9"

29.5" - 31.1"

38.9" - 40.5"

67 - 68"

LG

39.7" - 41.3"

31.9" - 33.4"

41.3" - 42.9"

68 - 69"

XL

42" - 43.7"

34.2" - 35.8"

43.7" - 45.2"

69 - 70"

2X

44.5" - 46"

36.6" - 38.2"

46" - 47.7"

70 - 71"

Alpinestars Womens Leather Jacket Sizes

Euro Size

Bust

Waist

Hip

Height

34

32.6" - 34.2"

24.8" - 26.3"

34.2" - 35.8"

63"

36

35" - 36.6"

27.1" - 28.7"

36.6" - 38.2"

64"

38

37.4" - 38.9"

29.5" - 31.1"

38.9" - 40.5"

65"

40

39.7" - 41.3"

31.9" - 33.4"

41.3" - 42.9"

67"

42

42" - 43.7"

34.2" - 35.8"

43.7" - 45.2"

68"

44

44.5" - 46"

36.6" - 38.2"

46" - 47.7"

69"

46

44.5" - 46"

36.6" - 38.2"

46" - 47.7"

70"

MENS

Alpinestars Mens Pants Sizes

Size

US Size

Euro Size

Waist

Hip

Inseam

Height

XS

28

44

29.8"

36.2"

30"

69"

SM

30

46

31.5"

37.7"

32"

70"

MD

32

48

33.1"

39.8"

34"

71"

LG

34

50

34.6"

41"

34"

72"

XL

36

52

36.2"

42.5"

36"

73"

2X

38

54

37.7"

44.1"

36"

75"

3X

40

56

39.4"

45.6"

38"

76"

4X

42

58

41"

47.2"

38"

77"

Alpinestars Mens Textile Jacket Sizes

Size

Chest

Waist

Hip

Height

XS

35" - 36.6"

28.7" - 30.2"

35" - 36.6"

67 - 69"

SM

37.4" - 38.9"

31.1" - 32.6"

37.4" - 38.9"

69 - 70"

MD

39.7" - 41.3"

33.4" - 35"

39.7" - 41.3"

70 - 71"

LG

42.1" - 43.7"

35.8" - 37.4"

42.1" - 43.7"

71 - 72"

XL

44.5" - 46"

38.1" - 39.7"

44.5" - 46"

72 - 73"

2X

46.8" - 48.7"

40.5" - 42.1"

46.8" - 48.4"

73 - 75"

3X

49.2" - 50.7"

42.8" - 44.5"

49.2" - 50.7"

75 - 76"

4X

51.6" - 53.1"

45.2" - 46.8"

51.8" - 53.1"

76 - 77"

Alpinestars Mens Leather Jacket Sizes

Euro Size

Chest

Waist

Hip

Height

46

36.6"

29.8"

36.6"

69"

48

37.4"

31.5"

37.4"

70"

50

39.3"

33.1"

39.8"

71"

52

41"

34.6"

41"

72"

54

42.5"

36.2"

42.5"

73"

56

44.1"

37.7"

44.1"

75"

58

45.6"

39.4"

45.6"

76"

60

47.2"

41"

47.2"

77"

RACING SUITS

Alpinestars Mens Suits Sizes

Size

Waist

Hip

Inseam

Height

36

29.8"

36.2"

30"

69"

38

31.5"

37.7"

32"

70"

40

33.1"

39.8"

34"

71"

42

34.6"

41"

34"

72"

44

36.2"

42.5"

36"

73"

46

37.7"

44.1"

36"

75"

48

39.4"

45.6"

38"

76"

50

41"

47.2"

38"

77"

Alpinestars Womens Suits Sizes

Size

Bust

Waist

Hip

Inseam

Height

34

31.5"

23.5"

33"

30.2"

63"

36

33"

25.2"

34.7"

31"

64"

38

34.7"

26.7"

36.2"

31"

65"

40

36.2"

28.2"

37.7"

32"

67"

42

37.7"

30"

39.2"

32"

68"

44

39.2"

31.5"

41"

32.7"

69"

46

41"

33.2"

42.5"

33.5"

70"

Alpinestars Gloves SizingTo measure for Gloves: place a tape measure under your palm and measure from the knuckle of your forefinger to the knuckle of your pinkie finger. Note the measurement and compare it to the chart below.

Alpinestars Glove Sizes

Measurement

Glove Size

Numeric Size

2 1/8" - 2 5/8"

XS

7

2 5/8" - 3 1/8"

SM

8

3 1/8" - 3 5/8"

MD

9

3 5/8" - 4 1/8"

LG

10

4 1/8" - 4 5/8"

XL

11

4 5/8" - 5 1/8"

2X

12

We do not guarantee fit. This sizing chart is a suggested guideline only.

Competition Accessories is a company of core motorcycle and ATV enthusiasts who are dedicated to bringing the best possible shopping experience to every rider that visits our stores. After all, We've been shipping motorcyclists their motorcycle helmets, motorcycle jackets, gloves, boots and other motorcycle accessories for over 50 years. You don't hang around that long in any business without taking care of your customers and changing with the times. So trust that we will deliver and if we screw up, we will make it right... We promise!